摘要
目的比较新型亲油性纳米二氧化硅粉末显现手印的效果。方法应用亲油性纳米二氧化硅粉末与现场勘查箱内金粉、银粉和黑色磁性粉显现非渗透性客体表面油汗混合手印,并在自然光下观察比较显现效果。结果亲油性纳米二氧化硅粉末显现出的手印图像纹线清晰连贯,背景反差好。结论亲油性纳米二氧化硅粉末显现手印具有一定的优势。
Objective To investigate the fingerprint developing effect by novel hydrophobic nano-silica.Method Developing effects were comparied between hydrophobic nano-silica powder and traditional materials including copper powder,aluminum powder and black magnetic powder for oil-sweat mixed fingerprints on non-permeable objects under natural light.Results The latent fingerprints developed by novel hydrophobic nano-silica powder displayed more details and better background contrast in the fingerprint image.Conclusion The novel hydrophobic nano-silica material is more effective in fingerprint development than traditional materials.
出处
《中国司法鉴定》
2012年第3期52-54,78,共4页
Chinese Journal of Forensic Sciences
基金
中国人民公安大学学生科研创新项目(11LGS005)
关键词
亲油性二氧化硅纳米粉末
油汗混合手印
显现
hydrophobic silica nano-powder
oil-sweat mixed fingerprint
development
